const express = require('express')

const app = express()



app.get('/a', function(req, res){
    let id = req.query.id
    for (let index = 0; index < parseInt(id) * 1; index++) {
        console.log(index)
    }
    res.setHeader("Access-Control-Allow-Origin", "*")
    res.send("成功接收到" + id)
})
app.listen(91)